Bug ID: 14586
           Summary: Buildbot crash output: fuzz-2018-04-04-16225.pcap
           Product: Wireshark
           Version: unspecified
          Hardware: x86-64
                OS: Ubuntu
            Status: CONFIRMED
          Severity: Major
          Priority: High
         Component: Dissection engine (libwireshark)
  Target Milestone: ---

Problems have been found with the following capture file:

Input file: /home/wireshark/menagerie/menagerie/0000.cap

Build host information:
Linux wsbb04 4.4.0-116-generic #140-Ubuntu SMP Mon Feb 12 21:23:04 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.4 LTS
Release:        16.04
Codename:       xenial

Buildbot information:

Return value:  0

Dissector bug:  0

Valgrind error count:  1

Git commit
commit cf4a195ceff36472ab594115e618208185b6227f
Author: Guy Harris <>
Date:   Mon Apr 2 18:03:30 2018 -0700

    If we're reading from a string, don't fclose yyin.

    yyin is initialized to stdin.  When we're reading from files, we set it
    so that it points to the FILE from which we're reading, but when we're
    reading from a string, we don't set it, leaving it to point to stdin.

    This means that, just as the "read from the input" routine has to be set
    differently when reading from a file or a string, the "close the current
    input" routine has to be set differently as well.

    Bug: 14577
    Change-Id: Ie05880775612867e9037ace2de0cd0a0dd2fabb5
    Reviewed-by: Guy Harris <>
    (cherry picked from commit 9d87f607ee2ecefaff71f2ab3f2dc3d2dc185399)

==16404== Memcheck, a memory error detector
==16404== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==16404== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info
==16404== Command:
/home/wireshark/builders/wireshark-2.6-fuzz/fuzztest/install/bin/tshark -nr
tshark: Couldn't load plugin '':
undefined symbol: register_codec
==16404== Thread 2:
==16404== Conditional jump or move depends on uninitialised value(s)
==16404==    at 0xA5C7FB6: ws_mempbrk_sse42_compile (ws_mempbrk_sse42.c:58)
==16404==    by 0x6AFF1A0: register_all_protocols_worker (register.c:37)
==16404==    by 0xAA4DBB4: ??? (in
==16404==    by 0xB45A6B9: start_thread (pthread_create.c:333)
==16404==    by 0xB77741C: clone (clone.S:109)
==16404== HEAP SUMMARY:
==16404==     in use at exit: 107,627 bytes in 144 blocks
==16404==   total heap usage: 333,960 allocs, 333,816 frees, 38,472,724 bytes
==16404== LEAK SUMMARY:
==16404==    definitely lost: 0 bytes in 0 blocks
==16404==    indirectly lost: 0 bytes in 0 blocks
==16404==      possibly lost: 0 bytes in 0 blocks
==16404==    still reachable: 13,304 bytes in 115 blocks
==16404==         suppressed: 94,323 bytes in 29 blocks
==16404== Rerun with --leak-check=full to see details of leaked memory
==16404== For counts of detected and suppressed errors, rerun with: -v
==16404== Use --track-origins=yes to see where uninitialised values come from
==16404== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)

[ no debug trace ]

You are receiving this mail because:
You are watching all bug changes.
Sent via:    Wireshark-bugs mailing list <>

Reply via email to